File	Doc	Category	Size	Date	Package
BackgroundProcess.java	API Doc	Example	4154	Mon Jul 23 13:26:52 BST 2007	org.apache.struts2.interceptor

BackgroundProcess

• java.lang.Object

Fields Summary
private static final long	serialVersionUID
protected Object	action
protected com.opensymphony.xwork2.ActionInvocation	invocation
protected String	result
protected Exception	exception
protected boolean	done

Constructors Summary

public BackgroundProcess(String threadName, com.opensymphony.xwork2.ActionInvocation invocation, int threadPriority) Constructs a background process param threadName The thread name param invocation The action invocation param threadPriority The thread priority this.invocation = invocation; this.action = invocation.getAction(); try { final Thread t = new Thread(new Runnable() { public void run() { try { beforeInvocation(); result = invocation.invokeActionOnly(); afterInvocation(); } catch (Exception e) { exception = e; } done = true; } }); t.setName(threadName); t.setPriority(threadPriority); t.start(); } catch (Exception e) { exception = e; }

Methods Summary
protected void	afterInvocation() Called after the background thread determines the result code from the ActionInvocation, but before the background thread is marked as done. throws Exception any exception thrown will be thrown, in turn, by the ExecuteAndWaitInterceptor
protected void	beforeInvocation() Called before the background thread determines the result code from the ActionInvocation. throws Exception any exception thrown will be thrown, in turn, by the ExecuteAndWaitInterceptor
public java.lang.Object	getAction() Retrieves the action. return the action. return action;
public java.lang.Exception	getException() Gets the exception if any was thrown during the execution of the background process. return the exception or null if no exception was thrown. return exception;
public com.opensymphony.xwork2.ActionInvocation	getInvocation() Retrieves the action invocation. return the action invocation return invocation;
public java.lang.String	getResult() Gets the result of the background process. return the result; null if not done. return result;
public boolean	isDone() Returns the status of the background process. return true if finished, false otherwise return done;